Nothing ever stands still in the high-tech industry. This week we saw smart-glasses, the unfolding of a smartphone, the appearance of a new Blackberry enterprise strategy, the disappearance of Google's hands-free mobile payment app, and developments in robotics worthy of a sci-fi horror flick. And that's just to name a few. Here are some highlights...

Rumors abound about a smartphone that folds in half like a wallet. The so-called Samsung Galaxy X could be in the hands of consumers this fall, with prototypes making the rounds in Barcelona later this month.

Adding a second authentication factor might sound like an easy lift, but that's not always the case. Google's latest Authenticator App can add a universal second factor to any app that can be accessed using an intent.

Google has decided to cut the cord on its on the hands-free payment system it introduced in a small trial in San Francisco last March. However, a company statement might leave you thinking that the system could re-emerge somewhere down the road.